Yes if i can i will do my best
Answer:
C. 140 years
Explanation:
Undergoing decay to decrease by half.
Answer:
geography*
Explanation:
the studey of the earth and its physical features
<u>Stromatolites are layered mounds of calcium carbonate that were deposited by algae during the Precambrian time.</u>
Answer: Option C
<u>Explanation:</u>
Stromatolites are the deposit of the layer which is mostly of limestone and these are mainly formed by the blue green algae which are only one celled organism of primitive times.
The features of these are that they are normally thin and have layers that might be either light or dark in color and are either flat or some of them even have a shape of a dome.
